diff --git a/backup.sh b/backup.sh
index c754333..4af5253 100755
--- a/backup.sh
+++ b/backup.sh
@@ -61,5 +61,5 @@ timestamp=$(date +%Y%m%d%H%M%S)
 
 do_backup
 if [ ! -z $keepfiles ]; then
- ls -d -1tr $destination/* | head -n -$keepfiles | xargs -d '\n' rm -f
+ ls -d -1tr $destination/*.xml | head -n -$keepfiles | xargs -d '\n' rm -f
 fi